1. involved /ɪnv'ɒlvd/

adj. 复杂的，混乱的；纠缠的，有关的

be/get involved in(a situation or activity)：

被卷进，牵涉进某事或某种局面；与…有关

Whether residents felt involved in the decision to move and how long they had lived there also proved significant. （2016年6月真题）

2. influence /ˈɪnfluəns/

n. 影响，冲击；影响力；作用

常与介词on搭配，influence on sb/sth

This disparity(差异) suggests the memory of our previous meal may have a bigger influence on our appetite than the actual size of the meal...（2013年12月真题）

3. individual /ˏɪndɪˈvɪdʒuəl/

adj. 单独的；个别的；一个人的

n. 个人

Personality isn't destiny (命运), and everyone knows that individuals can learn to change. （2016年6月真题）

4. evidence /ˈevɪdəns/

n. 根据，证据；迹象

 (be) in evidence clearly or easily seen 显而易见的; 清楚的; 明显的: 

~ (to do sth/that...) …的根据; 证据; 证词

Physical activity does the body good, and there's growing evidence that it helps the brain too.（2016年6月真题）

5. decades /ˈdekeɪd/

n. 十年

Decades of research have shown that in order to acquire skills and real knowledge in school, kids need to want to learn. （2015年12月真题）

6. debt /det/

n. 债务; 欠款

be in/out of debt 欠/不欠债

be in sb's `debt 欠某人之情

Many young Americans will never be able to pay off their debts.（2013年12月真题）

7. consumption /kənˈsʌmpʃn/

n. （食物﹑ 能量﹑ 资源等的）消耗；消耗量

As incomes rise among low-income consumers, the potential for further grain consumption is huge.（2016年6月真题）

8. conflict /ˈkɔnflɪkt/

n. 斗争；战斗；（意见欲望等）不合, 分歧, 抵触

v. 与…冲突；不一致

conflict with sth与…不一致，冲突

9. concern /kənˈsɜːn/

v. 对…有重要性；影响

n. 担心；忧虑；焦虑；焦急

concern oneself with/in/about 忙于/关心…

as far as sb/sth is concerned 就某人/某事而言

concern for/about/over sth/sb担心；忧虑

10. challenge /ˈtʃælɪndʒ/

n. 挑战；质问；怀疑

v. 要求…竞赛；怀疑；挑战

常和介词to搭配：对…表示怀疑或质问